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Precision measurement of the E2 transition strength to the 2_1^+ state of C-12

D'Alessio, A. ; Mongelli, T. ; Arnold, M. ; Bassauer, S. ; Birkhan, J. ; Brandherm, I. ; Hilcker, M. ; Hüther, T. ; Isaak, J. ; Jürgensen, L. ; Klaus, T. ; Mathy, M. ; Neumann-Cosel, P. von ; Pietralla, N. ; Ponomarev, V. Yu. ; Ries, P. C. ; Roth, R. ; Singer, M. ; Steinhilber, G. ; Vobig, K. ; Werner, V. (2020)
Precision measurement of the E2 transition strength to the 2_1^+ state of C-12.
In: Physical Review C, 102 (1)
doi: 10.1103/PhysRevC.102.011302
Article, Bibliographie

Abstract

The form factor of the electromagnetic excitation of 12C to its 2+1 state was measured at extremely low momentum transfers in an electron-scattering experiment at the Superconducting Darmstadt Electron Linear Accelerator (S-DALINAC). A combined analysis with the world form-factor data results in a reduced transition strength B(E2;2+1→0+1)=7.63(19)e2fm4 with an accuracy improved to 2.5%. In-medium no-core shell-model results with interactions derived from chiral effective field theory are able to reproduce the result. A quadrupole moment Q(2+1)=5.97(30)efm2 can be extracted from the strict correlation with the B(E2) strength emerging in the calculations.

Item Type: Article
Erschienen: 2020
Creators: D'Alessio, A. ; Mongelli, T. ; Arnold, M. ; Bassauer, S. ; Birkhan, J. ; Brandherm, I. ; Hilcker, M. ; Hüther, T. ; Isaak, J. ; Jürgensen, L. ; Klaus, T. ; Mathy, M. ; Neumann-Cosel, P. von ; Pietralla, N. ; Ponomarev, V. Yu. ; Ries, P. C. ; Roth, R. ; Singer, M. ; Steinhilber, G. ; Vobig, K. ; Werner, V.
Type of entry: Bibliographie
Title: Precision measurement of the E2 transition strength to the 2_1^+ state of C-12
Language: English
Date: 6 July 2020
Publisher: American Physical Society
Journal or Publication Title: Physical Review C
Volume of the journal: 102
Issue Number: 1
DOI: 10.1103/PhysRevC.102.011302
Abstract:

The form factor of the electromagnetic excitation of 12C to its 2+1 state was measured at extremely low momentum transfers in an electron-scattering experiment at the Superconducting Darmstadt Electron Linear Accelerator (S-DALINAC). A combined analysis with the world form-factor data results in a reduced transition strength B(E2;2+1→0+1)=7.63(19)e2fm4 with an accuracy improved to 2.5%. In-medium no-core shell-model results with interactions derived from chiral effective field theory are able to reproduce the result. A quadrupole moment Q(2+1)=5.97(30)efm2 can be extracted from the strict correlation with the B(E2) strength emerging in the calculations.

Uncontrolled Keywords: Deutsche Forschungsgemeinschaft, DFG, German Research Foundation, SFB 1245, Project ID 279384907, GRK 2128, Project ID 264883531
Additional Information:

Art.No.: 011302(R) ; SFB 1245 (project ID 279384907), GRK 2128 (project ID 264883531)

Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1245: Nuclei: From Fundamental Interactions to Structure and Stars
DFG-Graduiertenkollegs
DFG-Graduiertenkollegs > Researcg Training Group 2128 Accelerator Science and Technology for Energy-Recovery Linacs
05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
05 Department of Physics > Institute of Nuclear Physics > Experimentelle Kernphysik
05 Department of Physics > Institute of Nuclear Physics > Experimentelle Kernphysik > Experimentelle Kernstruktur und S-DALINAC
Date Deposited: 20 Dec 2023 10:51
Last Modified: 20 Dec 2023 10:51
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